Self-threading shuttle.



@JEAN WFAPTISTE DAUDELIN, oF FALL RIVER, MASSACHUSETTS.

SELF-THREADING SHUTTLE;

Specification of Letters Patent.

Patented Ju1y2, 1907.

Application liled January 25, 1906.* Serial No. 297,750.

To all whomit may concern: Be itknown that I, JEAN BAPTISTE DAUDELIN, a citi- 4zen ofthe United States, residing at Fall River, in thecounty of Bristol and Commonwealth of Massachusetts,

have invented certain new and useful Improvements in Self-Threading Shuttles, of which the following is a specification. y l

This invention relates to self-threading shuttles and particularly to the structure of the eye thereof to prevent the unthreading of the same by ballooning or otherwise. To overcome this tendency which is present in all shuttles of this type, I have devised a new form of bushing which, together with its relations to the shuttle proper and the threading slots, makes the unthreading of the shuttle impossible. This is accomplished by arranging a slotted bushing in the eye between the passage from the bobbin chamber and its mouth and. arranging the slots relatively thereto so that in threading the lling is drawn entirely around this bushing and allowed to rise therein through the protected slit in its bottom. l

The structure of this bushing and its arrangement in the shuttle will be more fully described in the specication which follows, reference being made to the accompanying drawing in which, i

Figure l, is a plan of one end of a shuttle. Fig. 2, a vertical section thereof. Fig. 3, a side view. Fig. 4, a section on the line 4 4 Figs. 2 and 3. Fig. 5, a section on the line 5-5 Figs. 2 and 3, and Figs.` 6 and 7 details of the bushing. l

l is a self-threading shuttleV having a bobbin chamber 2 and a transverse threading eye 6 with which it communicates by a passage 3.

5 is a threading slot leading into the eye 6 and into the bushing 4 located therein through the slit 41 cut in its bottom. This bushing 4 is a tube having a closed end 43 slotted at 44 for adjustment by a screw driver. The bushing is provided with a longitudinal slit 4l and a branch slit 42 extending at right angles therefrom.

The slit 42 is preferably located at the bottom of the bushing with the adjacent cleared portion 45 disposed on the side of and communicating with the threading slots 5. The slit 42 which is on the opposite side from these threading slots 5, extends above thebody of the shuttle and opens directly into the chamber 3. To

enter this chamber .the thread passes entirely around the inner end of the bushing, and following thev cleared portions 45 finally lands in said slit 42 and assumes the position indicated in Fig. l. The bushing is prov.vided with a cleared portion 45 adjacent to these slots to provide for the passage of the thread between it and the body of the shuttle. The end ofthe bushing is also slightly beveled or rounded as at 46 to allow the 'thread to easily slip around it. The bushing is inserted in the eye 6 and may be held in place by any means as by a pin.

In threading the shuttle the thread 7 is drawn first down through the slot 5 until it longitudinally incloses the bushing 4 in the eye 6. At the moment the end of the thread is being drawn into the outer end of the bushing (i. e. when it passes into it from the slot 5) the inner end slips over the head 43, following the cleared portion 45 and enters the slit 42, the end of which lies above the body of the shuttle and opens directly into the passage 3, so that in this position the thread 7 passes from the bobbin straight into the bushing throughV the exposed end of slit 42 and from it out through the bushing.

Obviously any form of auxiliary retaining device may be used in connection with this device or it maybe used without any assisting retainer.

The form and disposition of the slots in the bushing v may also be changed and various other substitutions may be made without departing from the spirit of my invention. L

What I therefore claim and desire to secure by Letters Patent, is z- 1. In a self-threading shuttle, the combination of a bobbin chamber, a threading-eye, a bushing in said eye having a slot throughout a part of its length on its under side and communicating with said chamber, and threading slots leading below said bushing and around its innerv vend to communicate with said first named slot.

2. In a self-threading shuttle, the combination of a bobbin chamber, a threading-eye, a bushing in said eye having a slot throughout a part of its length communicating with said chamber, below said bushing and about its inner end to communicate with said first named slot.

3. In a self-threading shuttle, the combination of a bobbin chamber, a threading-eye, a bushing in said eye having a slot 'throughout a part of its length, said slot being exposed at its closed end in said chamber, and threading slots passing below said bushing and around its end to communicate with said first named slot.

4, In a self-threading shuttle, the combination of a bobbin chamber, a transverse threading-eye, a bushing in said eye having a longitudinal slot throughout a part of its length anda circumferential slot cut through the lower part of the bushing and communicating with said chamber, and threading slots passing below4 said bushing and around its inner end to communicate with said last named slots.

V5. In a'self-threading shuttle, the combination of a bobbin chamber, a transverse threading-eye, a passage between said chamber and eye, a bushing in said eye, a slot in said bushing extending from the-outer end of the bushing to a point near its inner end and lying below' the line of said passage, an under cut passage between and threading slots passing' said slot and said first named passage, and a threading slot communicating with said slot and passage to allow the thread to be drawn into the bushing.

6. In a self threading shuttle, a bobbin chamber, a threading-eye, a slot in said eye terminating short of the end thereof and a threading passage communicating With said slot and passing around said end of the eye.

7. In a self threading shuttle, a bobbin chamber, a threading eye, bushing in said eye, a slot in said bushing terminating short of the end thereof and a threading pas- 10 sage communicating with said slot and passing around said end of the bushing.

In testimony whereof, I ax my signature in presence of two witnesses.

JEAN BAPTISTE DAUDELIN.

Witnesses:

ANDREW MCCAETHY, HERBERT K. ALLARD. 

